Looking back, behind that style!

Starting at 10 am this morning, the main line of the main line of the Xiaoshan style expressway (Jinsheng Road-Xianghu Tunnel), Hangzhou, Zhejiang, officially opened a trial operation!

The project is 3 kilometers long in the project, from Jincheng Road to Xianghu Road in the north to Xianghu Road in the north. The main line of the elevated expressway is designed according to two -way 6 -lane, with a speed of 80 km/h; the ground road is designed and transformed by two -way 6 -lane, with a speed of 50 km/h (local is 40 km/h).

Flat and spacious roads, clear traffic standards, brand new light control intersections ... Standing at the ramp entrance, Zhang Yifeng, secretary of the temporary party branch of Xiaoshan City Investment Group Expressway Construction Project and general manager of the basic company of the subsidiary, watched the upcoming style expressway It is deeply touched: "The construction process is really difficult. We overcome the three major 'block tigers' in the railway business line, the subway interval tunnel, and the lava development zone."

Since the beginning of construction, the courage to overcome difficulties in the city builders has not diminished, and the confidence of firmness has not disappeared, and the spirit of hard work has always been through, and the goals of the nodes have been achieved. What kind of day is this? On the occasion of opening, the participants of Xiaoshan City Investment shared their bits and pieces of the expressway.

"Geological Extraction" — Kung Fu is not responsible for people

"It is difficult to imagine that some areas of this expressway are the cave area." Zhang Yifeng said that the first problem facing construction was the complex geological situation. The position of the cave is located 70 meters below the ground. The cave is divided into multiple layers. It is similar to gourd -like. The deepest cave is 27 meters, and the position of 70 to 97 meters below the surface. There are piles under the Chengtai of the Expressway. If the piles are not penetrated through the cave, the top plate on it is thin, and the holding layer is not enough. The whole pile will go down, and the bridge will collapse when the load of the bridge is too large. To handle it well.

"Cross operation" -thery to see real merits

In addition to the need to deal with the cave, the challenges that are more difficult to construction follow, and the fast -road pile foundation is adjacent to the operation of the Metro Line 1 interval tunnel and the Xianghu Metro Station. The appendage structure is 1.48 meters recently, and the construction difficulty and risk are high.

In order to solve these two major problems, the Urban Investment Group Joint Project Company hired external experts and held a construction demonstration meeting many times, and finally determined the construction process of using a full -scale pile foundation in China. The construction process of full -set pile foundation has the advantages of high -perforated efficiency, low construction safety risk, and small disturbance of surrounding environment. It not only effectively guarantees the pile foundation quality of special geological conditions such as the cave, but also guarantees the operation and maintenance safety of the subway. Essence

"Iron -related Construction" — Bite Qingshan without relaxation

At the same time, the interchange bridge across the Shanghai -Kunming Route on the project. According to the relevant requirements of the railway iron -related project construction, the existing cable beams on the cross -railway belong to the business line construction. To this end, the urban investment group organizes the preparation of the special construction plan of the reporting review and review and reporting the construction plan in advance. According to the business line construction plan issued by the Shanghai Bureau Group Corporation, make full use of the railway sunroofs at night 23 at night 23. : 05- 1:00 the next day of the Shanghai-Kunming Blocking Line for 115 minutes to carry out the construction of cross-rail steel box beams to ensure that the project is promoted as a planned node.

The style Expressway is an important part of the Qiushi Expressway -Xixing Bridge -Wind Avenue -Linpu Expressway in the Xiaoshan section in the "Four vertical" of Hangzhou Expressway. The network structure will effectively strengthen the traffic connection between Xiaoshan District and the main urban area of ​​Hangzhou, alleviate the traffic pressure in the north and south of the city, and promote the economic and social development along the route.

Behind the opening of the project, it is not only the result of the cooperation between all parties to work together, but also the initiative of Xiaoshan City's investment in the construction of a city and operating a city. (Jin Linjie Sun Yufei)

Construction process

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